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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Associate	Howard Snyder	Brazil	1 2 3 4 5
2	Marketing Assistant	Pascale Cartrain	England	1 2 3 4 5
3	Sales Representative	Patricio Simpson	Bulgaria	1 2 3 4 5
4	Accountant	Jaime Yorres	USA	1 2 3 4 5
5	Owner	Pascale Cartrain	Argentina	1 2 3 4 5
6	Owner	Jaime Yorres	Spain	1 2 3 4 5
7	Accounting Manager	Georg Pipps	Brazil	1 2 3 4 5
8	Sales Representative	Georg Pipps	Austria	1 2 3 4 5
9	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
10	Accountant	Georg Pipps	Spain	1 2 3 4 5
11	Sales Agent	Jaime Yorres	USA	1 2 3 4 5
12	Accounting Manager	Paul Henriot	Germany	1 2 3 4 5
13	Accounting Manager	Pascale Cartrain	Spain	1 2 3 4 5
14	Owner	Paul Henriot	Italy	1 2 3 4 5
15	Sales Representative	Georg Pipps	Brazil	1 2 3 4 5
16	Marketing Assistant	Antonio Moreno	Brazil	1 2 3 4 5
17	Sales Consultant	Georg Pipps	Brazil	1 2 3 4 5
18	Sales Manager	Paul Henriot	USA	1 2 3 4 5
19	Marketing Assistant	Pascale Cartrain	Germany	1 2 3 4 5
20	Sales Associate	Pascale Cartrain	Spain	1 2 3 4 5
21	Owner	Elizabeth Lincoln	Argentina	1 2 3 4 5
22	Accounting Manager	Pascale Cartrain	USA	1 2 3 4 5
23	Sales Representative	Jaime Yorres	Austria	1 2 3 4 5
24	Accounting Manager	Georg Pipps	USA	1 2 3 4 5
25	Sales Consultant	Patricio Simpson	USA	1 2 3 4 5
26	Sales Representative	Pascale Cartrain	Argentina	1 2 3 4 5
27	Sales Consultant	Georg Pipps	Germany	1 2 3 4 5
28	Sales Associate	Pascale Cartrain	USA	1 2 3 4 5
29	Sales Associate	Pascale Cartrain	England	1 2 3 4 5
30	Marketing Assistant	Jaime Yorres	Brazil	1 2 3 4 5
31	Sales Manager	Patricio Simpson	France	1 2 3 4 5
32	Sales Consultant	Howard Snyder	Bulgaria	1 2 3 4 5
33	Sales Manager	Jaime Yorres	Bulgaria	1 2 3 4 5
34	Sales Consultant	Hanna Moos	USA	1 2 3 4 5
35	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
36	Sales Representative	Elizabeth Lincoln	USA	1 2 3 4 5
37	Accountant	Elizabeth Lincoln	France	1 2 3 4 5
38	Accounting Manager	Howard Snyder	Austria	1 2 3 4 5
39	Sales Agent	Matti Karttunen	Germany	1 2 3 4 5
40	Sales Agent	Jaime Yorres	Italy	1 2 3 4 5
41	Sales Associate	Matti Karttunen	Italy	1 2 3 4 5
42	Owner	Pascale Cartrain	England	1 2 3 4 5
43	Marketing Assistant	Pascale Cartrain	France	1 2 3 4 5
44	Marketing Assistant	Pascale Cartrain	Italy	1 2 3 4 5
45	Owner	Howard Snyder	Argentina	1 2 3 4 5
46	Sales Representative	Antonio Moreno	Austria	1 2 3 4 5
47	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
48	Marketing Assistant	Patricio Simpson	USA	1 2 3 4 5
49	Sales Representative	Georg Pipps	Austria	1 2 3 4 5
50	Marketing Manager	Antonio Moreno	Germany	1 2 3 4 5
51	Marketing Manager	Hanna Moos	Bulgaria	1 2 3 4 5
52	Owner	Jaime Yorres	USA	1 2 3 4 5
53	Sales Representative	Hanna Moos	Italy	1 2 3 4 5
54	Sales Manager	Pascale Cartrain	France	1 2 3 4 5
55	Sales Agent	Matti Karttunen	France	1 2 3 4 5
56	Sales Agent	Patricio Simpson	Spain	1 2 3 4 5
57	Owner	Paul Henriot	Austria	1 2 3 4 5
58	Owner	Jaime Yorres	Germany	1 2 3 4 5
59	Marketing Manager	Georg Pipps	France	1 2 3 4 5
60	Sales Representative	Elizabeth Lincoln	Italy	1 2 3 4 5
61	Sales Agent	Paul Henriot	France	1 2 3 4 5
62	Sales Representative	Hanna Moos	England	1 2 3 4 5
63	Sales Associate	Georg Pipps	Italy	1 2 3 4 5
64	Sales Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
65	Sales Agent	Patricio Simpson	France	1 2 3 4 5
66	Marketing Assistant	Antonio Moreno	England	1 2 3 4 5
67	Sales Manager	Matti Karttunen	Italy	1 2 3 4 5
68	Sales Representative	Jaime Yorres	Spain	1 2 3 4 5
69	Marketing Manager	Georg Pipps	Spain	1 2 3 4 5
70	Sales Consultant	Hanna Moos	Germany	1 2 3 4 5
71	Sales Agent	Jaime Yorres	Austria	1 2 3 4 5
72	Sales Representative	Hanna Moos	England	1 2 3 4 5
73	Sales Representative	Jaime Yorres	Brazil	1 2 3 4 5
74	Sales Agent	Howard Snyder	France	1 2 3 4 5
75	Marketing Assistant	Paul Henriot	Bulgaria	1 2 3 4 5
76	Owner	Paul Henriot	Bulgaria	1 2 3 4 5
77	Sales Agent	Matti Karttunen	Bulgaria	1 2 3 4 5
78	Accounting Manager	Jaime Yorres	USA	1 2 3 4 5
79	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
80	Sales Representative	Jaime Yorres	Brazil	1 2 3 4 5
81	Sales Representative	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
82	Marketing Manager	Georg Pipps	England	1 2 3 4 5
83	Sales Consultant	Jaime Yorres	Bulgaria	1 2 3 4 5
84	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5
85	Accounting Manager	Howard Snyder	France	1 2 3 4 5
86	Sales Representative	Hanna Moos	Brazil	1 2 3 4 5
87	Sales Agent	Georg Pipps	Italy	1 2 3 4 5
88	Accounting Manager	Pascale Cartrain	Germany	1 2 3 4 5
89	Accounting Manager	Hanna Moos	Germany	1 2 3 4 5
90	Sales Representative	Jaime Yorres	England	1 2 3 4 5
91	Accountant	Hanna Moos	France	1 2 3 4 5
92	Owner	Georg Pipps	Brazil	1 2 3 4 5
93	Marketing Manager	Georg Pipps	Germany	1 2 3 4 5
94	Accountant	Patricio Simpson	Italy	1 2 3 4 5
95	Owner	Matti Karttunen	England	1 2 3 4 5
96	Marketing Manager	Georg Pipps	Austria	1 2 3 4 5
97	Accounting Manager	Elizabeth Lincoln	France	1 2 3 4 5
98	Marketing Assistant	Paul Henriot	Bulgaria	1 2 3 4 5
99	Accounting Manager	Elizabeth Lincoln	Germany	1 2 3 4 5
100	Sales Consultant	Patricio Simpson	USA	1 2 3 4 5


...191 192 193 194 195 196 197 198 199 200 ... Item 198001 to 199000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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